Breech-loading gun.



- PATENTED Nov. 5, 1907.

A. FYRBERG.

BREEGH LOADING GUN..

APPLICATION FILED BEPT.11,1906.

4 SHEETS-SHEHT 1.

No. 869,967 PATENTED NOV. 5, 1907.

' A. FYRBERG.

BREEOH LOADING GUN.

AP-PLIOATION nun SEPT. 11. 1905.

4 SHEETSBHEE.T 2.

4 SHEETS-SHEET 4.

jvvvva: Jiwdu PATENTED NOV. 5, 1907.

A. FY'RBERG. BREEGH LOADING GUN.

APPLIUATION FILED SEPT. 11. 1905 ewlj'obe (:0,

9 i 1 L.) 4% I, 1 I r I ANDREW FYRBERG, OF HOPKINTON, MASSACHUSETTS.

BREEGH-LOADING GUN.

Specification of Letters Patent.

Patented Nov. 5, 1907.

Application filed $eptember 11, 1905. Serial No. 277.856.

To all whom it may concern:

Be it known that I, ANDREW FYRBERG, a citizen of the United States,residing at Hopkinton, in the county of Middlesex and State ofMassachusetts, have invented a new and useful Breech-Loading Gun, ofwhich the following is a specification.

This invention relates to a breech-loading gun, and more especially to adouble-barrel breechloading gun of breakdown type.

The especial objects of this invention are to provide an improvedindependent shell-ejecting mechanism for each barrel; to efficientlycombine the shell ejecting mechanisms with the firing mechanisms of thegun in such way that the shell-ejecting mechanism for either barrel willnot operate except after the firing mechanism of that particular barrelhas been discharged; to provide a safety for the gun which during normaloperations will prevent discharge except when the safety is moved tofiring position, and which additionally may be moved to a third positionto permit the lowering of the firing hammers without the discharge ofthe gun; to provide a simple and convenient gun frame-work which willpermit the parts of the gun to be assembled in a simple, convenient andCompact arrangement; and to improve various details of construction.

To these ends, this invention consists of the breechloading firearm andof the combinations of parts therein as hereinafter described and moreparticularly pointed out in the claims at the end of this specification.

In the accompanying four sheets of drawings, Figure l is a side viewpartly broken away of sufficient parts of a breech-loading gun toillustrate the application of this invention thereto. Fig. 2 is a planview of the parts shown in Fig. 1, looking in the direction of the arrow2- of Fig. 1. Fig. 3 is a fragmentary side view of the barrel. Fig. 4 isa side view partly broken away of the body of the gun-frame. Fig. 5 is aside view of the detachable bottom plate of the gun-frame which carriesthe firing mechanism. Fig. 6 is a fragmentary view of part of thetore-end. Fig. 7 is a plan view of the parts shown in Fig. 5 looking inthe direction of the arrow 7-. Fig. 8 is a plan view of the parts shownin Fig. 4 looking in the direction of the arrow -8-. Fig. 9 is a partialfront view 01' the parts shown in Fig. 8 looking in the direction of thearrow 9-. Fig. 10 is a bottom plan view of the parts shown in Fig. 4looking in the direction of the arrow 10. Fig. 11 is a side view of thebarrel locking bolt. Fig. 12 is a plan view thereof looking in thedirection of the arrow -12-. Fig. 13 is a detail view of the barrellocking-bolt spring. Fig. 14 is a side view of the top-snap. Fig. 15 isa plan view thereof looking in the direction of the arrow 15. Fig. 16 isa detail view of the operating stud of the topsnap and its fasteningscrew. Fig. 17 is a plan view of the operating stud of the top-snaplooking in the direc' tion of the arrow 17. Fig. 18 is a detail view ofthe retaining spring of the safety. Fig. 19 is a detail view of thecatch and spring for holding the top-snap. Fig. 20 is a detail view ofone of the sears. Fig. 21 is a detail view of one of the triggersprings. Fig. 22 is a side view ofone oi the firing hammers. Fig. 23 isa rear view thereof looking in the direction of the arrow 23. Fig. 24 isa sectional plan View of part of the gun-frame showing the sliding-boltswhich act as cooking slides and which also control the shell ejectingmechanisms. Fig. 25 is a sectional plan view of one of the slidingbolts. Fig. 26 is a side view thereof looking in the direction of thearrow -2G-. Fig. 27 is a detail view of an ejector controlling catch,the trigger therefor, and the springs for said parts. Fig. 28 is afragmentary side view partly broken away of the barrel. Fig. 29 is arear view of the parts shown in Fig. 28 looking in the direction of thearrow 29. Fig. 30 is a bottom plan view of the barrel lug shown in Fig.28 looking in the direction oi the arrow 30. Fig. 31 is a plan view 01"one of the ejectors. Fig. 32 is a detail view of one of theejector-detents, and Fig. 33 is a detail view of the U-shaped spring forthe ejector-detents.

One particular object of my invention is to provide a breech-loading gunwhich may be opened whenever desired, but in which the shell ejectorsare combined with the firing devices in such way that a shell will beejected only after its firing mechanism has been operated.

A gun constructed according to my invention is also preferably providedwith an improved safety device which not only occupies the usual twopositions, but which can be moved to third position to permit thehammers to be lowered while the gun is being closed, whereby the tensionof the hammer-springs may be re laxed when the gun is to be put away,and whereby the ejectors may be rendered operative even when the shellshave not been discharged.

The gun is lramed up in a simple and direct manner so that the same canbe assembled with the least possible amount of machine work, and theparts combined in a very compact arrangement.

Referring to the accompanying drawings and in detail, as shown in Fig.1, F designates the body part of the gun-frame. The frame is providedwith a pivot-pin P, and swinging on the pivot-pin P are barrels 13carrying a fore-end E. These parts may be arranged as in an ordinaryshot gun of breakdown type. I

Fitting into the bottom of the frame F is a bottomplate 40 which can befastened in place by screws threaded into the holes 41 shown in Fig. 10.The bottom-plate is also fastened in place, and connected with the upperpart of the frame F by means of a long screw 42. Mounted in thebottom-plate 40 are the firing hammers which are controlled by triggersand soars, as hereinafter described.

The top-snap 43 is located in the ordinary position,

and as shown most clearly in Figs. 14 and 15 the topsnap 43 is providedwith an extension 44 forming a swinging-catch which constitutes one ofthe barrel locking instrumentalities. The top-snap 43 is provided with asquare hole 45 which fits over the square section 46 of an operating-pincarrying a cam 47 at its lower'end.

The pin and top-snap are fastened together by the screw 48.

As shown most clearly in Fig. 3, the mid-rib between the barrels Bextends rearwardly, and is provided with a notch 49 cooperating with theswinging-catch to form one of the barrel locking instrumentalities. Thesecond barrel locking instrumentality as shown in Figs. 4, 11 and 12consists of the sliding locking bolt 52 which has a catch 53 at itsforward end for engaging a notch 54 of the barrel-lug, and which isprovided at its rear end with a stud 154 which is guided in a lug 56 andhas a spring 55 coiled thereon. On its under side the barrel lockingslide 52 is provided with an inclined face 57 cooperating with the cam47, and, as shown in Fig. 12, the locking bolt 52 has perforations 60and 61 for receiving the operating pin of the top-snap and theframe-screw 42 respectively. Extending through the slide 52 is a pin 62which coiiperates with the firing hammers to move the same tohalf-cocked position when the barrel locking bolt is moved back.

In order to prevent the top-snap from swinging back to normal positionso that the barrel cannot be readily closed, I have provided aspring-pressed button 50 having a pin which extends up into position tohold the topsnap open, as shown in Fig. 8. The edge of the springpressedbutton is located in such position that it can be forced down by the endof the barrel projection whenever the barrels are closed. By means ofthis construction it will be seen that I have provided a double lock forthe barrels. That is to say, when the gun is closed, the barrels will belocked, both by the swinging catch formed by the projecting end of thetop-snap, and also by the locking bolt. It will also be seen that thetopsnap will be held in its swung out position so long as the gunremains open, permitting the barrels to be snapped down to normalposition whenever desired without interfering with the swinging end ofthe top-snap.

Referring to Figs. 5 and 7 for a detailed description of the firingmechanism; the bottom plate 40 is provided with lugs 63, and fastened inthe lugs 63 is a transverse pin 64. Pivoted on the transverse pin 64 arethe firing hammers 65 and 66. Cooperating with the firing hammers 65 and66 respectively are the sears 67 and 68. Coiled on the transverse pin 64are hammer-springs 69 which operate the firing hammers 65 and 66, andwhich also have their other ends extended to operate the sears 68 and 67respectively. Also pivoted in the plate 40 are the triggers 70 and 71which control the sears 67 and 68 respectively. Oooperating with thetriggers 70 and 71 is a safety device normally preventing the gun frombeing discharged.

As shown in Fig. 4, 74 designates a safety slide having a lug 75extending through a slot in the top-plate of the frame. Carried by thelug 75 is a detent spring 76, the end of which is arranged to engage anyone of three notches in the under side of the top-plate of the frame.Two of these notches correspond to the two normal positions of thesafety slide, to wit, the locked or central position, and the pushedforward or firing position; while the third corresponds to an abnormalposition of the safety, permitting the hammers to be lowered withoutdischarging the gun. Pivoted in the lug 75 is an arm 77 which slides ina notch in the lug 56 and is guided by a transverse pin 78. Extendingdown from the part 77 and formed integrally therewith is a narrower arm79 which has a transverse pin 80. The transverse pin 80 cotiperates withthe lugs 73 of the triggers 70 and 71. When the locking pin 80 isdirectly over the lugs 73, to which position it is moved by the end ofthe barrel-locking slide 154 when the gun is opened, it will hold thetriggers from swinging so that the gun cannot be discharged. When thesafety mechanism is pushed forward for normal operation, the pin 80 willbe moved away from over the lugs 73, so that the triggers may be pulledto fire the gun. In addition to this, the pin 80 may, if desired, bemoved back from safe position to permit the hammers to be loweredwhile-the gun is being closed, this being done without discharging theshells. It is to be understood that the safety is to be moved to itsthird position only comparatively infrequently, and it should not bepermitted to remain in its abnormal or third position. except so long asrequired for the lowering of the hammers. v

Referring to the fourth sheet of drawings for a detailed description ofthe shell ejecting devices, and of the means for combining the same withthe firing mechanism so that said shell ejecting devices will onlyoperate to eject the shell or shells which have been fired; as shown inFigs. 28 and 29, the mid-rib of the barrel has a single hole 81 boredtherein. Mounted in the hole 81 are two separate semi-cylindricalejector-slides 82. .Each of the ejector slides 82 is provided at itsrear end with an ejector plate 83, one of which cooperates with a shellin the right-hand barrel, and the other of which co'ciperates with ashell in the left-hand barrel. Extending forward from each of theejector slides 82 is a pin 84 carrying a coiled spring 85. Cooperatingwith both of the ejector slides 82 is a stop-screw 86 for limiting themotion of the ejector slides. Cooperating with each of theejector-slides 82 is a detent 87 for normally holding its ejectorinoperative. Each of the detents 87 is provided with a head 89 extendingthrough a slot in the side of the barrel lug. As shown most clearly inFig. 30, the bottom of the barrel lug is provided with a recess 91 forreceiving the U-shaped spring 90, each leg of which holds up one of thedetents 87. The spring 90 and the detents are held in place in thebarrel lug by a retaining plate 92 shown in Fig. 28. Cooperating witheach of the ejector detents is a sliding bolt 94 which also serves as acocking'slide. As shown most clearly in Fig. 6, the fore-end E isprovided with notches 95 for receiving the front projecting ends of thesliding bolts 94, so that these sliding bolts 94 operate to force backthe firing hammers to full cocked position whenever the gun is thrownwide open.

The cocking action of the sliding bolts 94 is similar to that of theordinary guns of this type, except that a separate cocking bolt is usedfor each of the firing hammers, and this construction is adopted inorder that the sliding bolts may also 'serve to control the ejectormechthe sliding bolts 94 is provided with slabbed or cut away portionswhich are engaged by cross-pins 96 and 97 respectively Pivoted in eachof the sliding bolts 94 is a catchplate 98 which is normally thrown outby its spring 99 in position to stand over the projecting end of anejector-detent 87, but which can be held back by a sliding trigger 101which is normally held in locked position by spring 103. The rear end ofthe catch-piece 98 is inclined or cam-shaped so that when the bolt ismoved.

rcarwardly to cock the gun, the rear or inclined edge 100 of the plate98 will engage a pin 97 to swing the pivoted plate back to the retractedposition, in which it is locked by its sliding trigger as shown in Fig.25. When the sliding bolt 94 is again moved forward by the discharge ofthe gun, the sliding trigger 101 will engage the pin 97, releasing theswinging piece 98 so that the same will swing out above the projectinghead 89 of the corresponding ejector detent 87, and it results irom thisthat when the gun is opened after eitherbarrel has been lired, theejector of that barrel will be released to throw the shell out of thebarrel, and this operation will take place without causing the ejectionof the shell which may be contained in the other barrel, unless thatshell shall also have been discharged.

In case it is desired to eject a shell from the gun without firing thesame, it can be done by moving the safety to its third position, andthen lowering the corresponding hammer. When this has been done and thegun opened, the desired shell will be ejected the same as if it had beendischarged.

The operation oi the several parts of my gun have been so fullydescribed in connection with the detailed description of the parts, thatit is not thought necessary to describe the operation of the gun as awhole.

I am aware that certain features of my gun may be used in guns ofdifferent types from that of the breakdown double barrel shot gun whichI have herein illustratcd. I do not wish, therefore, to be limited tothis particular application of my invention, but

What I do claim and desire to secure by Letters Pat ent of the UnitedStates is 2* 1. In a gun. the combination with the frame and barreltiring mechanism. of a shell ejector,-an ejector detent, a movablemember having a releasing piece for the detent, and a trigger on saidmovable member for holding said detent in retracted position, saidreleasing piece being movable into the position to engage the detent.

2. In a gun, the combination with the frame and barrel tiring mechanism,of a spring-pressed shell ejector, an ejector detent, a sliding bolthaving a springpressed releasing piece for the detent, and a slidingtrigger in the belt for holding said detent in retracted position, saidreleasing piece being movable into position to engage the detent.

In a gun, the combination with the frame and barrel firing mechanism, ofa shell ejector, an ejector detent, a bolt, :1 releasing piece movablymounted on the bolt for engaging" the detcnt to hold it away from theejector, a trigger mounted on the bolt for holding the releasing piecein retracted position, and stationary pins projecting into the bolt toengage the releasing piece and trigger for operating them as the bolt isreciprocated. I

-l. In a gun, the combination of the frame, a barrel tiring mechanism, aspring-pressed shell ejector, an ejector detent, and a sliding bolthaving a spring-pressed releasing piece for the ejector detcnt which ismoved into position to be engaged when the gun is fired.

In a double barrel breech-loading gun, the combination of the frame, thebarrels pivoted thereto, a springprcssed shell ejector for each barrel,:1 detcnt for each shell ejector, a firing hammer for each barrel, and asliding-bolt for each hammer, each of said sliding bolts having a catchpiece and a trigger which holds the catcl1piece out of the way, andwhich is released so that the catch-piece may be engaged by the ejectordetent after the slide has been moved forward by the firing hammer.

G. In a double barrel breech-loading gun, the combination of the frame,the barrels pivoted thereto, a spring pressed shell ejector for eachbarrel, a detent for each shell ejector, a firing hammer for eachbarrel, two sliding bolts, each of said sliding bolts having acatchplate to be engaged by an ejcctor-detent, and a trigger for holdingsaid. catch-plate back out of the way, and transverse pins in the frameserving to set and release the catch-plates, whereby the shelbcjectorsare controlled by the firing of the gun.

7. In a gun, the combination with the frame and barrel, of aspring-pressed shell ejector, a detent for the ejector, a firing hammer,a bolt having a catch-piece and a trigger for holding the catclrpieceout of the way, and means for releasing the trigger so that thecutchpicce may be engaged by the ejector detent after the bolt has beenmoved forward by the firing hammer.

S. In a gun, the combination with the frame and barrel, of a shellejector, a detent therefor, a firing-hammer, a bolt having a catclrplateadapted to be engaged by the ejector detent, a trigger for holding saidcatch-plate back out of the way, and transverse pins in the frameadapted to set and release the catch-plate, whereby the shell ejector iscontrolled by the firing of the gun.

9. In a gun, the combination of an ejector, means for controlling theejector, a hammer adapted to move said means when opcratedto firingposition to set the ejector, a safety adapted to be moved and held inthree different positions, and means connected with the ejector forholding the trigger from moving so that the gun cannot be dischargedwhen the safety is in one position; for per mitting the trigger to bepulled to fire the gun and set the ejector when the safety is in thesecond position; and to permit the hammer to be lowered while the gun isbeing closed without discharging the shell and to set the ejector, whenthe safety is in the third position, whereby the opening of the gunafter the hammer is lowered will eject the shell as it it hadbecndischarged.

In testimony whereof I have hereunto set my hand, in the presence. oftwo subscribing witnesses.

ANDREW FYRBERG.

Witnesses IIIIL P W. SOUTIIGATE, ARTHUR E. NYE.

